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The coarticulation-duration relationship in early Quechua speech
1Center for Comparative and Evolutionary Biology of Hearing and Department of Hearing and Speech Sciences, University of Maryland-College Park, 0100 Samuel J. LeFrak Hall, College Park, USA.
Journal of Phonetics
|October 25, 2021
Summary
Children
Area of Science:
- Phonetics and phonology
- Developmental linguistics
- Bilingualism
Background:
- Previous research indicates children coarticulate more than adults.
- Studies have overlooked the relationship between coarticulation and speaking rate in child language acquisition.
- The influence of morphological context on this interaction remains unexplored.
Purpose of the Study:
- To investigate the developmental interaction between coarticulation and speaking rate.
- To examine how this interaction differs across morphological environments.
- To compare speech patterns in bilingual Quechua-Spanish children and adults.
Main Methods:
- Acoustic and articulatory phonetic analysis of speech patterns.
- Measurement of coarticulation and phone duration in bilingual children (5-10 years) and adults.
- Analysis across two word environments: within morphemes and across morpheme boundaries.
Main Results:
- Adults showed more coarticulation in shorter duration sequences, irrespective of morphological context.
- Children's coarticulation-duration patterns varied depending on the morphological environment.
- Children's speech, unlike adults', was sensitive to prosodic length, with shorter phones in longer words.
Conclusions:
- Developmental differences in coarticulation and speaking rate interaction are influenced by morphological structure.
- Adults' more established language dominance and faster speaking rate may explain observed patterns.
- Children's speech production shows greater sensitivity to prosodic and morphological factors during development.
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